Firstly, the key is F# Major, not f minor. The ABRSM rightly ranks it with the four Ballades and the Polonaise-Fantasie, all at LRSM level, and it indeed is a worthy peer to these five other masterworks. Make no mistake, it's not easy. I wouldn't want to go into details here, but there are many challenges involved. The pedalling in particular would require a high degree of skill given the complex and rapidly changing harmonies.
One other incidental challenge is the exotic key, and this combined with Chopin's absolutely rigorous and orthodox notation in the modulations leads to one facing a barrage of double-sharps in complex chords towards the end. Of course, you'll be memorising it, so this notational complication won't be a serious problem to you

and may be a useful preparation for subsequently tackling Messaien's piano works...